Cassia Trees
Q.

Cassia Tree

Anonymous added on June 12, 2011 | Answered

I live in Jacksonville, FL. A month ago I planted a Cassia tree (5 ft tall, 1. 5 inch diameter trunk). Nearly all the yellow flowers were gone. This week I noticed that some of the foliage is turning yellow. I watered daily for the first week and then twice a week. Lots of pine straw in the area cleared for the planting. I read, however, that the soil should not be too alkaline. I was under the impression pine needles are acidic. Mixed in a half cup of shrubbery food (16-4-8) with the compost at planting. Did I over fertilize?

A.
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Nikki
Certified GKH Gardening Expert
Answered on June 13, 2011

It is possible that the roots were burned by the fertilizer when planted. The plant may also have an air pocket in the soil and the roots are drying out. Step firmly around the base of the plant to collapse any air pockets. I would also flood the area with water, meaning leave the hose running at a medium speed on it for 20-30 minutes. This will help wash out excess fertilizer and will also help further collapse any pockets in the soil.

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